直接通过浏览器访问这个地址是否能显示一段JSON？类似：
{
"name" : "litepress-server",
"cluster_name" : "elasticsearch",
"cluster_uuid" : "3zz_iGZHRR6OO-yjXz2tQQ",
"version" : {
"number" : "7.13.4",
"build_flavor" : "default",
"build_type" : "deb",
"build_hash" : "c5f60e894ca0c61cdbae4f5a686d9f08bcefc942",
"build_date" : "2021-07-14T18:33:36.673943207Z",
"build_snapshot" : false,
"lucene_version" : "8.8.2",
"minimum_wire_compatibility_version" : "6.8.0",
"minimum_index_compatibility_version" : "6.0.0-beta1"
},
"tagline" : "You Know, for Search"
}